Celebrate spring with these easy Lucky Charms Marshmallow Treats. A nearly 1:1 cereal to marshmallow ratio makes them extra gooey.
Matt’s favorite cereal is Lucky Charms. He lived on it when he was a bachelor in college. Cereal 3 meals a day! These days we reserve it for vacation and special occasions (getting old stinks).
Sometimes when I’m craving rice krispie treats, I make Matt happy by making these Lucky Charms Marshmallow Treats instead.
If you like Lucky Charms, try our Lucky Charms French Toast!
❤️ Why you’ll love this recipe:
- Ready in about 15 minutes.
- Colorful for spring and St. Patrick’s Day.
- Kids love to help make these treats!
🔑 Key Ingredients
There are only 4 ingredients needed for this recipe:
- Butter. If you use salted butter, it helps to cut down on the sweetness of the cereal and marshmallows. If you only have unsalted butter, add about 1/4 teaspoon of salt.
- Marshmallows. Marshmallow treats work best if you use fresh marshmallows. If you only have stale, you can try putting a slice of bread into the marshmallow bag and sealing it. They may soften up after a day or two. But, for the best results, use fresh marshmallows.
- Vanilla Extract. For a little warm flavor.
- Cereal. You can use name brand Lucky Charms or a store brand.
⭐️ Tips for Making Lucky Charms Marshmallow Treats
These sweet cereal bars are super easy to make. Here are just a few tips:
- Be sure to stir the gently when you add the cereal to avoid crushing the marshmallows and cereal.
- Also be sure to press gently into the pan to avoid dense and hard bars.
- If you’re looking for a little something extra, try saving some marshmallows from the cereal to press into the top of the bars, drizzle with white chocolate or add sprinkles.
- Try flavored Lucky Charms or flavored marshmallows for another variation.
❓ Can I make these in the microwave?
Sure! Add the butter and marshmallow to a microwave safe bowl. Heat in 30 second increments, stirring between each, until melted and smooth. Continue with the recipe as written.
Lucky Charms Marshmallow Treats
- 6 tablespoons salted butter (plus more for pan)
- 16 ounces miniature marshmallows (8 1/2 cups)
- 1 teaspoon vanilla extract
- 9 cups Lucky Charms cereal
- Generously butter a 9×13 inch baking dish. Set aside.
- In a large pot, melt the butter over low heat. If the heat is up too high, your marshmallow treats may end up hard. Melt it low and slow together.
- Add the mini marshmallows and heat, stirring often until melted and smooth.
- Remove from heat and stir in vanilla extract. Mix well and gently stir in the cereal.
- Using a piece of parchment paper or a buttered rubber spatula, gently press the treats into prepared pan. Allow to set for 30 minutes before cutting into squares.
- Store at room temperature in an airtight container and eat within 3 days for the best flavor and texture.
Frequently Asked Questions
Store the bars in an airtight container at room temperature for up to 4 days.
Unsalted butter can be used in place of salted butter. Regular sized marshmallows can be used in place of the miniature marshmallows, just use a 16 ounce bag of the regular marshmallows.
This recipe makes enough to fit well into a 9×13 inch dish. If you would like to use a smaller dish, cut the recipe in half or use 2 baking dishes.
I do not recommend freezing these treats. The cereal doesn’t stand up well to being frozen and thawed.